Filled-sack-sewing machine.



G. E. a E. D. SCOTT. FILLED SACK SEWING MACHINE.

APPLICATION FILED FEB.15, 1909.

Patented May 21, 1912.

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G. E. & E. D. SCOTT.

FILLED SACK SEWING MACHINE.

APPLICATION FILED FEBJS, 1909.

1,026,833. Patented May 21, 1912.

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rp j Z 'Z 5 7 ce a G. E. & E. D. SCOTT.

FILLED SACK SEWING MACHINE.

APPLIUATION FILED PEB. 15, 1909.

- 1,626,833, Patented May 21,1912.

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` G. E. & E. D. SCOTT.

FILLED SACK SEWING MACHINE.

APPLICATION FILED P21245, 1909.

1,026,833. Patented `may 21, 1912.

6 SHEETS-SHEET 5.

G. E. & E. D. SCOTT. FILLED SACK SEWING MACHINE.

APPLIoATIoN FILED P21345.V 1909.

Patented May 21, 1912.

6 SHEETS-SHEET 6.

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UNITED STATES PATENT OFFIOE.

GEORGE E. SCOTT ANDEDWAR'D" D. SCOTT, OF CHICAGO, ILLINOIS, ASSIGNORS,BY MESNE ASSIGNMENTS, T0 TIMEWELL SACK FILLING AND SEWING MACHINECOMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

FILLED-SACK-SEWING MACHINE.

Specification of I-.etters Patent.

Patented May 21, 1912.

Application filed February 15, 1909. Serial No. 477,901.

To all whom it may concern.

Be it known that we, Gnoaon E. SCOTT and EDWARD D. Soo'r'r, citizens ofthe United States, residing in Chicago, in the county of Cook and Stateot' Illinois, have invented a new and useful Improvement in Filled-Sack-Sewing Machines, ot' which the following is a specification.

Our invention relates to improvements in filled sacl: sewing machines.

r1"he object of our invention is to provide an automatic, machine of asimple, efficient leommo'date sacks of different lengths or sizes, powerdriven mechanism for automatically operating the sack conveyer indifferent positions to which it mayf be adjusted by said adjustingmechanism, a pair of endless flexible sack holder chains furnished withremovable clamps or holders for clamping together the mouth edges ofsacks of different widths or sizes, means for automatically stopping andstarting said'sacl holder chains, guides for supporting and holding theparallel portions of said chains in sack clamping relation to eachother, a yielding backing or support for one of said guides, a stop gagefor the 'front edge of the sack mouth on one of said sack holder chainsto insure the sack mouth being inserted in proper relation 'to cach setof sack holders or clamps on the chains, means for automaticallystopping and starting the sack holder chains at. the sack receivingposition, means forautomatically starting and stopping the sewingmechanism as each set ot' sack holder clamps onwthc sack holder chainspresents a sack into sewing position with the needle of the sewingmechanism and delivers it therefrom, a chain or thread feeder and holderand a chain or thread cutter and means for automatically operating thesaid feeder and cutter. 1 V V 4Our -invention consists in the variousnovel combinations and subcombinations of these parts, and in the novelconstruction of parts and devices and novel combinations of parts anddevices herein shown and described, and more particularly specified inthe claims.

In the accompanying drawing forming a part of this specification, Figure1 is a plan view of a filled sack sewing machine embodying ourinvention. Fig. 2 is a longitudinal vertical section on the broken linef Q-Q of Figfl. Fig. 3 is a vertical cross section on line 3-3 ofFig. 1. Fig. 4 is a horizontal section' on line 4-4 ofFig. 3. Fig. 5 isa detail plan view partly in horizontal section of the sack holdermechanism. Fig. 6 is a detail plan view of a short portion of one of thesack holder chains. Fig. 7 is a detail elevation of a short portion ofone of the sack holder chains. Fig. 8 is a detail plan View of the,sewing mechanism partly in horizontal section. Fig. 9 is a detail planof' the thread 'feeder of the sewing mechanism. Fig. 10 is a detailvertical section on line 10-10 of Fig. 8 showing the needle and otherparts. Fig. 1l is a detail vertical cross section on line 'l1-11 of Fig.8. Fig. 12 is a detail view of the controlling device and other parts.

'In the accompanying drawing forming a part of this specification, Arepresents the frame of the machine, it being of any desiredconstruction suitablel for giving .support to and accommodating theVarious parts of the machine. It preferably has a bed member A1 restingupon caster Wheels A2 to enable the machine to be readily moved from onepart of the factory to another, suitable upriglits A3, cross framemembers A4 A, braces A, and al divided top plate AT A8 with a slot orpassage a between the two members A'I A of this top plate to accommodatethe mouths ofthe sacks to be sewed, and raised connecting bridges A9 tosecure the two members of the divided top plate rigidly and firmlytogether.

B is a vertically adjustable endless flexible sack conveyer, the samepreferably comprising a pair of chains b, the links of which arefurnished with connecting slats b1 upon which the sacks directly rest.The sack conveyer chains b are. mounted on pulleys or sprocket wheelsb2, the shafts 53 of which are ournaled on the conveyer frame B1 whichis provided with supporting rails B2 for the ends of the conveyer slatsto. rest upon. The sack conveyer or its frame. B1 is automaticallyadjusted up and down as required to accommodate sacks of differentlengths or sizes from the main driving shaft- C through suitableconnecting mechanism, the same preferably comprising two upright liftingscrews B3, the threads of which turn in suitable nuts or threadedsleeves B4 on the conveyer frame B1, one. on each side of the conveyerframe near the middle thereof, and which 'lifting screws B3 arejournaled at their upper and lower ends in suitable bearings B5 on t/heframe of the machine, and which, liftinea screws are provided at theirlower ends with worm gears B6 which mesh with worms -B7 on the crossshaft Bs, which is furnished with bevel friction gears B9 adapted toengage a bevel friction ge-ar B10 on a shaft B11, having at its upperend a bevel gear B12 meshing with a bevel gear B13 on the driving shaftC. The worm shaft BS is adapted by a spline B81 to slide in the worms B"to the very slight extent necessary to enable either one of the frictiongears B9 vto be thrown into'and out of engagement with the bevelfriction gear B1", and thus clutch and unclutch the worm shaft B8 fromthe shaft B11which connects it with the driving shaft C. The worm shaftB8 isthus reciprocated when required to automatically connect the sackconveyer lifting or adjusting screws with the power shaft by means of afoot lever or treadle B14 the shaft B1s of which has an arm B1connecting with an armi?? on the sleeve B15, said sleeve and fixedbearing B21 of the shaft B8 bcing furnished with interengaging devicesB18 B17, preferably consisting bf a cam slot in one member engaging apin on the other. The operator by simply pressing his foot on the foottreadle can very quickly connect the lifting screws with the power shaftC either for raising or lowering the sack conveyer, one of the'clntchacting friction gears B1 serving to turn'the worm shaft BB and liftingscrews B3 in the direction necessary for raising the sack conveyer` andthe other friction clutch acting gear B9 in the direction necessary forlowering the sack eonveyer, according as the treadle B11* is rocked toone side or the other.

The endless flexible sack conveycr B is automatically driven or operatedfrom the driving shaft C through suitable connecting mechanism,preferably comprising a pulley C1 on the driving shaft, belt C2', apulley G1 on the sewing mechanism sha-ft G2, a worm g on said shaftengaging a work gear b4 on the countershaft b5, which is furnished witha bevel gear L6 engaging a bevel gear b1 'on the cross shaft bs, andwhich meshes with a bevel gear Zi on the upright shaft Z210, which isfurnished with a spline Z111 and sliding bevel gear 612, which mesheswith a bevel gear Z213 on shaft Z214 which carries a sprocket wheel L15connected by chain b1 with a sprocket gearb17 on the shaft b3 of thesack conveyor chain o2.

The endless eXible sack holder chains D D are mounted on horizontalpulleys or sprocket wheels D1 D1 D1 D1 and travel upon the top plate A7A3, one on each side of the longitudinal slot or passage a so' as toclamp between them the mouth of the sack and hold it in position forsewing as the same is conveyed past the sewing mechanism or needle. Theadjacent parallel portions of the sack holder chains D are yieldinglyheld and guided in sack holding or clam-ping relation to each other bymeans of guides E E1 between which such adjacent parallel. members ofthe chains D D pass, and one of these guides E1has a spring or ela'sticbac-king or support, preferably consisting of coiled springs E2,surrounding screws E3 so as to vcanse the sack holder chains to exert aproper but yielding clamping pressure upon the mouth'of the sack heldbetween them.

Each of the sack holder chains B l) is composed of a plurality of links(Z, and these links are provided wit-h removable and sectional sackclamping plates or devices (Z1, one preferably on each link, andremovably secured thereto by screws (Z3 so that a greater or less numberof these sack holding clamp members or plates may be employed in each.set according to the size or width of the sacks to be from time to timesewed in the machine. llach sack holding link (Z is preferably double,or composed of an upper and lower plate. which receive between them aconnecting link (Z4, lpreferably of circular disk form and to whichadjacent sucking holding links (l are pivotally' connected by pins.

As illustrated in the drawing, the `sack holder chains are shown asbeing provided each with two sack holders, each sack holder having aseries of twelve sack holding clamp members or plates (Z1, the series oftwelve plates representing mouth intended to be sewed. lf the sack mouthis narrower, a less number of clamp members or plates (Z1 are employedin each sack holding set or series of lates, and it' the sack to besewed has a wider mouth, a

the widthof the sack 35 l sack to abut against, and thus insure the`sack mouth being lnserted 1n a fixed and greater number of sack holdingclamp members all are employed for each set or series. The sack holder llates d1 have corrugated, knurled or roug ened opposing gripping facesd5 to cause them to have a greater gripping action on the fabric of thesack mouth, and the sack holder links d are also preferably furnishedwith similarly knurled or roughened faces d so that they may also exerta` holding or gripping action upon the sack mouth. Each sackholder chainis also preferably furnished with one or more oblong or plainlinks d"between adjacent sack holding sets or series of links d which carry thelsack holding plates d1. The pulleys 'or 'sprocket wheels D1 for the sackholder chains D are furnished with curved notches Difor engagement withthe circular or disk-like links d? of the sack holder chain.

Each of the sack holder plates or clamp members d1 of the chain D ispreferably furnished with a notched portion d8 adapted to receive asimilarly but reversely notched portion d of the plate of an adjacentlink so that the adjacent plates Z1 d1 may overlap each other and thusprevent the sack holder links from tilting one in respect to the otherand thereby interfering with the proper gripping or holding action onthe sack mouth.

Each set or series of sack holder links (l and clamp members or plates don one of the sack holder chains D is provided at or near the front endof the series with a gage or stop arm d for the front edge of the properrelation to each sack holder set or series of links on the chains D D,and thus enable the sewing mechanism which is started or set inoperation by each sack holder series of links as the same begins to passthe sewing mechanism and thus enable the sewing to begin properly at thefront edge of each sack'mouth in the passing sack holder or series ofsack holding links.

The front sack holding plates Z1 of each sack holding set or series oflinks constituting a sack holder are furnished with inclined or cam-likefaces d which engages the movable starting device F mounted adjacent tothe sack holder chains, and by which the sewing mechanism G is set inoperation at the propel' instant. The movable sewing mechanism startingor controlling device F is preferably furnished with a spring f whichreturns it to normal .position and stops the sewing mechanism after eachsack holding series of links or plates d1 pass, the sewing mechanismthus being kept in operation a greater or less time according to thenumber of plates d1 in each sack holder series of plates and accordingto the width' of the sack to be sewed.

The sewing mechanism controlling device F preferably stops or starts andcontrols frame or arm to which the reference letter G is 4particularlyapplied, and attached to the top plate of the frame at one side of theslot a, and overhanging said slot and the adjacent parallel portions ofthe sack holder chains, D D, and a needle g1, looper q2 presser foot g8,driving pulley G3, shaft G2,

l and suitable gearing or connecting mechanism for communicating motionto the needle and looper from the shaft Gr2 of the sewi'no' mechanism.The sewing mechanlsm sha G2 receives its motion from the driving shaft Cas before stated, through the belt C2 which may be shifted by hand whende sired from the driving pulley G3| to a loose pulley G1 on the shaftG2 by a belt shifter Gls having an operating lever G which the operatormay Vactuate with his leg through a lever G7 and yoke GB. The leg yokeGs is fixed upon the upright rock shaft or pivot G of the lever G7, andsaid lever carries at its inner end a pin G10 which works in a slot G11of a guide lever G12 which engages the downwardly bent arm G13 of thebent lever G, and which bent arm G13 of said lever GG-projects in thepath of the pin or projection d on the clamp plate d1 of the chain Dwhen said bent lever g stands in the position indicated in dotted lineson Fig. 1, or as more fully shown in Fig. 7.

The operation of the sewing mechanism is controlled or automaticallystopped and started as each sack holder set or series of sack holdinglinks on the chains D D approach and leave or pass the sack sewingmechanism by the sewing mechanism con'- trolling or stopping andstarting device F before described. The endless flexible sack holderchains D ale automatically operated from the power shaft C throughsuitable operating or connecting mechanism, the same comprisingpreferably the means before described for communicating motion to frontsack holding links andclanip plates d' all, one of which bears the gaged for the front edge of the sack'to .abut against, approach each otherby any suitable connectlng and disconnecting acting' device in themechanism which communicates motion the loose pulley G1, thus stoppingthe machine. It is again started by the operator through the beltshifter lever, the same being preferably operated by him with his legthrough the yoke G8 on the belt shifter lever. The belt shifterlever isthus preferably operatedby the leg as this leaves theI operators two-hands free for holding and entering the sack mouth between the ,sackholding chains D D. YIf the operator has,` a sack ready forl enteringits mouth between the sack holding chains D D, it Will be vfound oftenunnecessary to stop the sack holding chains D D for entering the sackbetween them, and in such case he leaves the belt s ifter lever G6 insuch position that its depending arm G13 is out of the path of theprojection d on the chain D or else, if that is necessary moves the beltshifter lever by means of the yoke so that the projection @X15 on thechain D will not strike or operate the belt shift-er lever to stop themachine.

H is the tread or chain feed or takeup and holding device, the samepreferably consisting of a pulley operating' in conjunction with aspring supporting clamp H1 having springs to give a yielding pressure tothe clamp H1 against the feed or take up roller H. The feed or take uproller H has a shaft 71.1 furnished with a ratchet h2 which is operatedby pawls h3 having spring 71.4 and carried on a lever h5 and connected lby a link it with an eccentric its on one of plates of one of the sackholding chains D,

and thus retracting the knife slide during the sewing operation andpermitting the spring to actuate the knife slide after the sewingoperation is completed as before state 1. ln a filled sack sewingmachine, the combination with a sewing mechanism, of a pair of endlesstraveling sack holder chains adapted to receive, clamp and holdvthemouth edges of a Sask between them, and a .Loaaeae 2. In av filled sacksewing 'machine, the

combination with a sewing mechanism, Adevice for controlling theoperation of the sewing mechanism, and a pair of opposing endlesstraveling sackholder chains, one of said chains'having at certainportions thereof only adevice engaging' said controllingdevice,substantially as specified. 3, The combination with a sewing mechanism,of a device for automatically intermittently controlling the operationof the sewing mechanism, and a pair of opposing endless sack holderchains ortions only of which engage said controlling device,substantially as specified.

4. The combination with a sewing mechanism, of opposing endlesstraveling vsack holder chains, one of said chains having a gage for thefront edge of the sack, and means carried by one of these chains forautomatically stopping the chains substantially as specified.

5. ln a filled sack sewing machine, the combination with a sewingmechanism, of a pair. of endless opposing sack holding removable sackholding lclamp members or plates, substantially as specified.

' `7. The combination with a sewing mechanism, of a pair of opposingendless flexiblesack holding chains furnished with a plurality of setsor series of removable sack holding clamp members or plates to adapt thechains `for holding sacksof di'erent widths, substantially as specified.

8. The combination with a sewing mechanism, of a'pair of opposingendless flexible sack holding chains furnished with a plurality of setsor series of removable sack holding clamp members to adapt the chainsfor holding sacks of different widths, each set or series of said clampmember having a gage or stop arm for the front edge of the sack at thefront end of the set or series, substantially as specified.

9. rlhe combination with a sewing mecha'- nism, of a pair of opposingendless flexible sackA holdingchains furnished with ar plurality of setsor series of removable sack holding clamp members to adapt the chainsfor holding sacks of dierent widths, each set or series of said clampmembers having a gage or stop arm for the front edge of the sack at thefront end ofthe set or series, a controlling device for fthe sewingmechanism, the front sack holding clamp or pla of each set or serieshaving a cam for operating the sewing mechanism controlling device,substantially as specified.

10. The combination with a sewing mechanism, of a pair of opposed'endless flexible sack holder chains intermittently operated, means forautomatically stopping the chains and a yielding guide for one of saidchains to cause said chainsV to clamp and hold the mouth edges of thesack with a yielding pressure, substantially as specified.

11. In a filled sack sewing machine, the combination with a sewingmechanism, of a pair of intermittently movable opposing endless flexiblesack holder chains, and means for automatically stopping the chains,substantially as specified.

12. In a filled sack sewing machine, the combination with a sewingmechanism, of a 4pair of lintermittently movable opposing endlessflexible sack holder chains, one of said chains having a gage for thefront edge ofthe sack, and means for automatically stopping the chains,substantially as specified.

13. Ina filled sack sewing machine,- the combination with a sewingmechanism, of a pair of intermittently movable opposing endless flexiblesack holder chains, one of said chains having a gage for the front edgeof the sack, and means for stopping and starting said sack holder chains1n sack receiving position,'substantially as specified.

14. The combination with a sewlng mechanism, of' a pair of opposingendless flexible sack holder chains, each furnished with-a plurality ofsets or series of sack clamping links and removable plates to adapt themachine for operation on bags of different widths, 'substantially asspecified.

15. The combination with a sewing mechanism, of a pair ofopposing'endless flexible' sack-holder chains, each furnished with aplurality of sets or series of sack clam ing 1links and removable latesvseparate by plainlinks, substantial y as specified.

1G. The combination with a sewing mechanism, of a pair of opposingendless flexible sack holder chains, each furnished with a plurality ofsets or series of sack clamping links and plates, one of the chainshaving at. the front o f each of said sets or series a gage for thefrontedge of the sack, said gages being spaced apart more than the length ofa single link, substantially as specified.

17. The combination with a sewing mechanism, of a pair of opposinendless y flexible sack holder chains, each` urnished witha plurality ofsets or series of sack clampingj links and plates, one of the chainshaving `at the front of each-of said sets or seriesv a age for the frontedge of the sack, a contro ling device for the sewing mecha/- nism eachof said setsor series having at the front thereof means for actuatingsaid operatinlg sewing mechanism controlling deviceintermittently,vsubstantially as specified.

.18. In a filled sack sewing machine, the combination with a sewingmechanism, a.

vcontrolling device therefor, a pair of oping chains, and means forintermittently operating said chains, said means comprising mechanismfor automatically stopping the chains,I substantially as specified.

20. In a filled sack sewing machine, the combination with a sewingmechanism, of a pair of opposin endless flexible sack holdlng chains, anmeans for intermittently said chains, said means comprismg lmec thechains, said chains each having a plurality of sets of sack holdinglinks, substantially as specified. v

21. In ayfilled sack sewing machine, the combination with a sewingmechanism, of a pair ofopposing endless Aflexible sack holdlng chains,and means for'intermittently 0perating said chains, said chains eachhaving a plurality of sets of sack holding links provided with removablesack clamping plates, substantially as specified.

22. Ina filled sack sewing machine, the combination with a sewingmechanism, of a pair of opposing endless flexible sack holding chains,and means for intermittently operating said chains, said chains eachhaving a plurality of sets of sack holding links provided with removablesack clamping plates, each set having a gage for the front `edge of thesack mouth, substantially as specified. 23.In a filled sack sewingmachine, the combination with a sewing mechanism, of a pair of opposingendless flexible sack holding chains, and means for intermittentlyoperating said chains, said chains each having a pluralit of sets ofsack holding links provided wit 1 removable sack clamping plates, and a.controlling devicey for the sewing mechanism, substantially asspecified.

24. In a filled sack sewing machine, the combination with a sewingmechanism, of a air'of opposing endless flexible sack holding chains,and means for intermittently operating sald chains, said chains eachhaving a pluralit of sets of sack holding links provided wit removablesackclamping plates,

anism for automatically stopping a controlling device for the sewingmechanism, and means -for actuating said controlling device from Vand byeach set of sack anism for raising andpositively lowering the sackconveyer from the power shaft, substantially as specified.

26. In a .filled sack sewing machine, the combination withv a sewingmechanism, of a pair of opposing endless flexible sack holding chains,an endless flexible sack conveyer, a power shaft, connecting` mechanismfor operating the sewing mechanism from said power shaft, conectingmechanism for operating said endless flexible sack holding chains fromthe power shaft, connecting `Il iechanism for'operating the sack`conveyer from the powershaft and connecting mechanism for raising andpositively lowering the vsack conveyer from the owershaft and acontrolling device for t e sewing mechanism, substantially as specied.

27. In a lilled sack sewing machine, the combination with a sewingmechanism, of a pair of opposin Aendless flexible sack holdmg chains, ane dless'flexible sack conveyer, a power shaft, connectm mechanism foroperating the sewing mec anisin' from said power shaft, connectinmechanism for operating! said endless exible sack holding chains from.the power shaft, connecting mechanism for operating the sack conveyer,

from the powershaft, connecting mechanism for raising and positivelylowering the sack conveyer from the power shaft and means for sengagingand disengaging the sack conveyer raising and lowerlng mechanism,substantially as specified.

28. Ina filled sack sewing machine, the

- combination' with a sewing mechanism, of a pair of opposing endlessflexible sack holdmg chains, an endless flexiblel sack conveyer, a'power shaft, connectin mechanism for operating the sewing mec anism fromsaid power shaft, connectin mechanism.. for'operating said endlessexible 'sack holding chains from the power shaft, connecting mechanismfor oplerating the sack conveys-r from the power s aft and connectingmechanism` for raising and lowering vthe sack conveyer from the powershaft, and a controlling device for the sewing mechanism, one of saidsack holder chains having means for actuating said sewing mechanism.controlling device, substantially as specified.

29. The combination with a sewing mechanism, of a pair of opposingendless flexible sack holder chains, means for intermittently vdrivingsaid chains, an endless flexible sack 30. The combination with a sewingmechl anism, of opposing endless flexible sack holder chains, a powershaft and connecting mechanism` for operating said sack holder chainshaving a 'disconnecting means, one

of said sack'holder chains having a device for operating saiddisconnecting means to stop the sack holder chains, substantially asspecified.

. 31.v The combination with a sewing mechanism, of opposing endlessflexible sack holder chains, one of said chains having a gage for thefront end of the sack, means for propelling the chains and means forstopping and starting the chains at the sack receiving position,substantially as specified.

32. The combination with a sewing mechanism, of opposing endlessAtraveling sack holder chains, a power shaft and means for automaticallyoperating the chains from the power shaft, means for stopping andstarting the chains at the sack receiving position, substantially asspecified.

33. In afilled sack sewing machine, the combination Awith a sewingmechanism, of an endless flexible sack conveyer, a power shaft, meansfor propelling said conveyerl from said power shaft, means for raisingand positively lowering said conveyer from the power shaft provided witha disconnecting device and a pair of opposing endless flexible sackholder chains, substantially as specified.

34'. In a filled sack sewin machine, the combination with a power s aft,of a sewing mechanism automatically intermittently operated, an endlesstraveling sack conveyer,

' raising and lowering mechanism for the sack conveyer, propellingmechanism for the sack conveyer, a pair of opposing endless flexiblesack holder. chains, means for propelling said chains, substantially asspecified.

35. In a filled sack sewin machine, the combination .with a power s aft,of a sewing mechanism, an endless traveling sack conveyer, raising andlowering mechanism for the sack conveyell adapted to positively lowerthe sack conveyer, propelling mechanism for the sack conveyer, a pair ofopposing endless flexible sack holder chains, means for propelling saidchains, and means for connecting and disconnecting said izov conveyerraising and lowering mechanism zvh the power shaft, substantially asspecie I Y 36. Inja filled sack sewin machine, the combination with apower s aft, of a sewing mechanism, an endless traveling sack conyeyer,raising and lowering 'mechanism for the sack conveyer, propellingmechanism for the' sack conveyer, a pair of opposing endless flexiblesack holder chains, means for propellingsaid chains, means for`connecting and disconnectin said conveyer raising and lowering mecanism with the power shaft, means for propelling said sack holder chainsvand means for stopping and starting the sack holder chains at the sackiiexiiving position, substantially as speci- 37. In a filled sack sewingmachine, the combination with a powery shaft, of a sewing mechanism, anendless traveling sack conveyer, raising and lowering mechanism for thesack conveyer, propelling mechanismv lfor the sack conveyer, a pair ofvopposing endless flexible sack holder chains means for propelling saidchains, means ior connecting and disconnecting said conveyer.

raising vand lowerin mechanism with the power shaft, means or propellingsaid sack holder chains and. means for stopping and starting the sackholder chains at -the sack receiving position, one of said Sack holderchains having a gage for-the front edge of the sack, substantially asspecified.

38. The combination with a sewing mechanism, of a pair4 of opposingendless ilexible sack holder chains, each. furnished with a plurality ofsets of sack clamping links, means' for propelling the sack holderchains andv means for automatically stoppin sack holder chains inposition for receiving Ia sack mouth between the opposing sack clampinlinks of the chains, substantially as speci ed. v

39. The combination with a sewing mechanism, of 'a pair of opposingendless flexible clamping links of they chains, anV endlessl sack holderchains, each furnishedwith a plurality of sets of sack` clamping links,means for propelling the sack ho der chains,

`means for automatically stopping the sack holder chains in position forreceivinga vsack mouth between' the opposing sack clamping links of thechains, and a sack conveyer, substantially 'as specified.' i

40. The combination with a Sewing mechanism, of a pair of opposingendless flexible sack holder chains, each furnished with a plurality ofsetsJ of sack clam ing links, means for propelling the sack ho derchains,

means for automatically stopping the sack' 'holder chains in position4for receiving sack mouth between the opposing sac flexible sackconveyer, means for propellin said sack'conveyer and means forautomatitheV , chain take up cally raising and lowering said sackconveyer, substantially as specified.

41.l The combination'with a sewing mechanism, of a pair of opposingendless flexible sack holder chains, each furnished with a plurality ofvsets of sack clamping links, means for propelling the sack holderchains, means for automatically stopping the` 'sack -liolder chains inposition for receiving a sack mouth between the opposing ,sack clampingAlinks of the chains, an endless fiexible sack conveyer, means forpropelling said sack conveyer, nieansfor automatically raising andlowering saidsack conveyer and a thread chain take u-p and holdingdevice, substantially as specified.

42. The combination with a sewing mecli- 'A anism, of a pairl ofopposing endless l'exi.-

ble sack holder chains, each furnished with a plurality of sets of sackclamping links,

means for propelling the sack holder chains, l

means for automatically stopping the sack holder chains in position forreceiving a sack mouth between the opposing sack clamping links of thechains, an endless flexible sack 'conveyer, means for propelling saidsack conveyer, means for automatically raising and lowering said sackconveyer, a n

'thread chain take up and holding device and a thread chain cuttingdevice, substantially as specified. i

43. The combination with a sewing mechanism, of apair ofopposing endlessHexible-sack holdei` chains, each furnished with a plurality of sets ofsack clamping links, means for propelling the sack holder chains,

means for automatically stopping the sackl holder chains in position forreceiving a sack mouth between the opposing sack clamping links of thechains and a threadand holding device, substantially as specified. i

44.v The combination with a sewing mechanism, of apair of opposingendless flexible sack holder chains, each furnished with a plurality ofsets of sack clamping links, means forpropellin the sack holder chains,means for automatically stopping' the sack holder chains in position forreceiving a sack mouth between the opposing sack endless sack holderchains engagstantially as specified.

.of opposing endless sack holderchains provided with a plurality of setsof clamping.

plates engaging 'said controlling device, a thread-chain .cutting deviceand means on one of the clamping plates for cont-rolling the operationof said threadchain cutting device, substantially as specified.

47. The combination with a sewing mechanism, of a device for controllingthe operation ofthe sewing mechanism, a pair of opposing endless sackholder chains en aging said controlling device, athread c ain cuttingdevice having a pin adapted to be engaged by oneY of said sack holderchains for controlling the operation thereof, sub- 48.-In a filled sacksewing machine, the combination with' a sewing. mechanism, of a pair ofendless traveling sack holder chains provided with -a plurality of setsof clamping plates adapted to receive, clamp and hold the mouth edges ofa sack between them, a movable startingdevice for the seW- inglmechanisnractuated thereby, a thread chain take up and holding device,a thread chain cutter means on onev of the clamping plates forcontrolling the operation of vsaid thread chain cutter, substantially asspecified. X

49. In a filleds'ack sewing machine, the combination .with a sewingvmechanism, a

device for controlling the operation of the ing said controlling device,a thread chain take up and holding device, a thread chain cutter an,means for controlling the operation of said thread chain cutter by oneof said sack holder chains, Isubsftalrtia-lly as specified. l

51. The combination with a sewing mechanism, lof opposing endlesstravelin sack holder chains, one of said chains iaving a gage for thefront edge of the sack,a l

thread chaintake up and holding device, a thread chain cutter and meansfor controlling the operation of said thread 'chain cutter by. one ofsaid sack holder chains, substan'tially' as specified.

52. In a Hlled sack Vsewing machine, the

combination `with a sewing mechanism, of a pair of endless opposing sackholding chains, provided with a series of removable sack holding clampmembers to adapt the Inachine for operation upon sacks of dienent:remesas anism, of opposing endless flexible sack holder chains havinglinks furnished with removable saclrholding clamp members or plates, athread chain taleiup and holding device, a thread chain cutter and meansfor .controlling the operationl of said thread chain cutter by one ofsaid sack holder chains, substantially as specified.

54. Thecombination with a sewing mechanism, `of a pair of opposingendless fiexible sack holding chains furnished with a plurality of setsor series of removable sack holding clamp members or plates to adapt thechains for holding sacks of vdiii'erent widths, a thread chain take upand holding device, a thread chain cutter and means for `controlling theoperation of said thread chain cutter by one of said sack holder chains,substantially as specified.

55. The combination with a sewing mechanism, of a pair of opposingendless flexible .sack holdingchains furnished with, a plurality of setsor series of removable sack holding clamp members or plates to adapt thechains` for holding sacks of dillierent widths, each set or series ofsaid clamp members or plates having a gage or stop arm for the frontedge of the sack at the front end ofthe set or series, a thread chaintake up and holding device, a thread chain cutter andmeans forcontrolling the operation lof said thread chain cutter by one of saidsack holder chains, substantially as specified, l

56. In a filled sack sewing machine, the combination with a sewingmechanism, of a pair of opposing endless sack holder chains, avertically adjustable and horizontally movable endless flexible sackconveyer, means for raising and positively lowering the sack conveyer,means for propelling the sack conveyer, a driving shaft and means forconnecting and disconnect-ing the driving shaft with said conveyerraising and iovering mechanism, substantially as speci- 57.' Ina filledsack 'sewing machine, the combination with a sewing mechanism, of a pairof opposing endless sack holder chains,

an endless fiexible sack conveyer, mechanismfor propellingsaid'conveyerand mechanism for automatically raising and positivelylowering the conveyer, substantially as specified.

58. In a filled sack sewing machine, the combination with a sewingmechanism, of a pair of opposing endless sack holder chains, an endlessHexible sack conveyer, mechanism for propelling said conveyer, mechanismfor automatically raising -and osit1'vely lowering the conveyer, a powers aft and means for connectlng and dlsconnectlng said power shaft withthe raising and positively lowering mechanism of said sack conveyer,substantially as specified.

59. In a filled, sack sewing machine, the combination'with a sack sewingmechanism,

of a pair of opposing endless sack holder.

chains, a sack conveyer, a power shaft, connecting mechanism forpropelling the sack conveyer from the power shaft and connectingmechanism for raising and positively lowering the conveyer from thepower shaft, substantially as specified.

60. In a filled sack sewing machine, the

combination with a sack sewing mechanism,

.screw for raising and lowering said conveyer, a power shaft andconnectinggearing between the power shaft and lifting screw foroperating the lifting screw from the power shaft, substantially asspecified.y

62. In a filled sack sewing machine, the combination with a sewingmechanism, of a pair of opposin endless sack holder chains, an endlessfleXi le sack conveyer, a lifting screw forraising and lowering saidconveyer, a power shaft and connecting gearing between the power shaftand lifting screw for operating the lifting screw from the power shaft,said connecting gearing between the power shaft and lifting screw havingmeans for turning the lifting screw in either direction as required toraise or lower the conveyer, substantially as specified.

63. In a filled sack sewing machine, the combination with a sewingmechanism, of a pair of opposing endless sack holder chains, an endlessflexible sack conveyer, a lifting screw for raising and lowering saidconveyer, a power shaft, and connectinggearing between the power shaftand llftlng screw for operating the lifting screw from the power shaft,said connecting gearing comprising a friction gear and two movablefriction gears, one or the other of which is adapted to be moved intoengagement with said first mentioned friction gear according as it isdesired to raise or lower the conveyer, substantially as specied.

GEORGE E. SCOTT. EDWARD D. SCOTT.

Witnesses:

H. M. MUNDAY, PEARL ABRAMs.

